The Regressed Son of a Duke is an Assassin
ML is youngest bastard son of noble "guardian" family. Raised as eldest sons "shadow" (assassin/dirty work). Betrayed and killed by brother once his goal was achieved. Regressed to childhood, future knowledge and skills from past life. Becomes OP "shadow/mist assassin". Getting revenge and foiling eldest sons schemes.
The Regressed Demon Lord is Kind
ML "Demon King" regressed to youth. Decides he's going to be a kind person this life. Fighting shady organization who create demonic humans. "Hero" is also a multiple time regressor, seems to be connected with organization.
Worn and Torn Newbie
ML is gamer who played DEM over 15yrs. Got scammed by loan sharks and becomes in debt. Regressed to first release of game. Uses knowledge to collect hidden items and become rich. OP character w OP second account. Becomes best player in the game, trying to take down "game association" that ruined the game in past life.
The S-Classes That I Raised
ML is F rank hunter with skill that allows him to boost others potential/use influenced ppls skills for short time after they die. His s rank brother saves him in a dungeon and he dies, uses brothers power to kill boss monster and is rewarded with chance to regress 5 years. All his skills become OP grade and he is tasked by the system to influence/raise 50 S rank hunters/monsters to stop the end of the world.
Regressor of The Fallen Family
ML regressed to teenager before he was expelled from his family and the kingdom fell. Uses future knowledge and sword techniques to grow stronger, gain influence and fortify his land. Saves his family on verge of collapse and is preparing for civil war that triggers kingdoms downfall.
When Fate Finds Us
FL is saintess who can see other ppls future when she touches them. Has only ever seen death as a sacrifice to snake god in her future until she meets ML. Runs away with him and is on journey to find iron crown, heirloom of another god that can kill snake bastard.
Peerless Dad